Title :
Reception of over horizon GPS propagation and earthquake precursors
Author :
Karia, S.P. ; Pathak, K.N. ; Yadav, K.S. ; Patel, N.C.
Author_Institution :
Appl. Phys. Dept., S.V. Nat. Inst. of Technol., Surat, India
Abstract :
The present paper reports the modification in refractivity prior to the Iran earthquake that had occurred on 16 April 2013 in Iran (28.10°N, 62.05°E). The reception of over horizon GPS signal from two GPS receivers Surat (21.16°N, 72.78°E) and Lucknow (26.91°N, 80.95°E) and results of atmospheric refractivity profile derived from Radio Occultation observations from COSMIC satellite obtained for epicenter region are presented in this paper. It is seen that atmospheric refractivity gets modified from 8 to 6 days prior to the earthquake at the epicenter.
Keywords :
Global Positioning System; earthquakes; geophysical techniques; radiowave propagation; refractive index; COSMIC satellite; GPS receivers; Iran earthquake; atmospheric refractivity profile; earthquake precursors; epicenter region; over horizon GPS propagation reception; over horizon GPS signal reception; radio occultation observations; time 8 day to 6 day; Earthquakes; Global Positioning System; Receivers; Refractive index; Satellite broadcasting; Satellites; Terrestrial atmosphere;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929817
